1 answer

Ordered-by user, means items in list node are ordered by user, not the leafs A,B,C regarding leafs - ordering is currently decided by system,
and there is no such way for user to specify ordering.

MD-SAL, Netconf and Restconf was designed in such way, that we do not support custom ordering where not maintained by YANG specification to allow us for memory / performance optimization in ODL. (Preserving user-order for leafs will hugely increase memory consumption in ODL.